Treatment of pharmaceutical wastewater containing antibiotics by O3
and O3/H2O2 processes.
Institute of Environmental Sciences, Bogazici
University, Bebek-Istanbul 80815, Turkey. firstname.lastname@example.org
Ozonation of three different synthetic pharmaceutical
formulation wastewater containing two human antibiotics and a veterinary
antibiotic has been studied to enhance the their biodegradability. The
effects of pH and initial chemical oxygen demand (COD) value as well as
addition of hydrogen peroxide on ozonation process were investigated.
Total organic carbon (TOC), COD, biochemical oxygen demand (BOD), and
aromatic content (UV254) were the parameters followed to evaluate the
performance of ozonation process. Comparison of the biodegradability of
selected wastewaters containing different antibiotics confirmed that the
variation of biodegradability was associated with the target compound.
While BOD5/COD ratio of veterinary antibiotic formulation wastewater was
increased from 0.077 to 0.38 with an applied ozone dosage of 2.96 g/l,
this ratio for human antibiotic I and human antibiotic II was increased
from 0 to 0.1 and 0.27 respectively. Moreover the results of this
investigation showed that the ozonation process is capable of achieving
high levels of COD and aromaticity removals at about their natural pH
PMID: 12656233 [PubMed - indexed for MEDLINE]